颅脑损伤颅脑损伤流行病学Epidemiology颅脑损伤发生率3，次于四肢伤居第二位，其死亡率（25%）和致残率高，居第一位。It is estimated that approximately 300 per 100,000 inhabitants are suffering a head injury(HI)every year,next to that of limb injury.HI is the leading cause of death(25%)/disability in trauma patients.颅脑损伤head injury头皮血肿头皮血肿头皮裂伤头皮裂伤头皮撕脱伤头皮撕脱伤颅盖骨折颅盖骨折颅底骨折颅底骨折原发性原发性:脑震荡、脑挫裂伤脑震荡、脑挫裂伤继发性继发性:硬脑膜外、下血肿，硬脑膜外、下血肿，脑内血肿脑内血肿头皮损伤头皮损伤颅骨损伤颅骨损伤脑损伤脑损伤 头皮血肿头皮血肿n定义定义多因钝器伤所致。血肿类型皮下血肿(subcutaneous hematoma)帽状腱膜下血肿(subgaleal hematoma)骨膜下血肿(subperiosteal h
